The new soft dart models "ACE" are in a class of their own. What sets them apart is their ultimate anti-slip performance. The barrels are coated with a vulcanized rubber grip using a complex and unique process. This provides a comfortable and secure feel for every throwing style. Visually complementary, the shaft is made of very durable, deep red nylon material and features an additional silver ring. The Marathon flights in standard shape are 100 microns thick.